A generally peaceful Tetra that does best kept in groups of 6 or more. May nip at other fish so should not kept with slow-moving long finned fish such as Angelfish, and as they themselves have fairly long finnage they should also not be kept with known nippers such as Tiger Barbs.

An exceptionally attractive Tetra with a similar body shape to the more commonly seen Congo Tetra. Their body is pale but exhibits iridescence under the right lighting conditions. The dorsal part can show blue reflections while the sides of the body reflect light with hues of yellow and silver. Their caudal fin is elongated and striking yellow in colour giving them their common name. All other fins are translucent with luminous blue-white edging.